Type-writing machine.



7 N0. 814-,623.' PATENTED MAR. 6, 1906.

W. A. ROBBINS & B. s. HYATT.

TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 27, 1904.

3 SHEETSSHEBT 1v No. 814,623. I I PATENTED MAR. 6 1906.

W. A. ROBBINS & B. S. HYATT.

TYPE WRITING MACHINE.

LP LIOATION FILED 821F127, 1904.

a SHEETS-SHEE'i" 2.

Witnesses zw fi Rttomegs m 814,623. I PATENTED MAR, 6, 1906. w; A.ROBBINS & B. s. HYATT.

TYPE WRITING MACHINE.

APPLICATION FILED SBPT.27,1904.

3 SHEETS-SHEET 3- Witnesses Attorneys UNITED s ATns PATENT OFFICE.

TEE It i'lORY.

WILLI'AM A. ROBBlNS AND BENJAMIN S; HYA'lT, OF V INITA, iNDIANTYPE-WRETENG MAGHlNE.

Specification of Letters Patent.

Patented March 6, 1806.

Appl cation filed September 27, 1904. Serial No. 226,181.

To all whom it may concern.-

Be it known that we, WILLIAM A. Rosnnvs and BENJAMIN S; HYATT, citizensof the United States, residing at Vinita, Cherokee Nation, IndianTerritor have invented a new and useful Typeriting Machine, of which thefollowing is a specification.

This invention relates to type-writing machines, and has ,for its objectto effect an automatie return of the carriage at the completion of itsforward movement, thereby to obviate the manual return of. the carriageand to make possible increased speedin the maniputhe .tor'natic tri inthe forward i g man pulation of the lation of themachine; In thisconnection it is proposed to employ pneumatic pressure for returning thecarriage and to effect an auof the controlling-valve at rmt of thecarriage, soas to set the pneumat'c return mechanism in operationindependent of any manual controlling thereof.

While theinvention is capable of use in connection with any of thetype-writing machines now in general use, it has been especiallydesigned for application to the Remington machine and is also designedto provi efor raising theescapement rack-bar from escapement-wheelduring the. return movement of the carriage, so as to avoid frictionbetween and breakage of said par-ts. A still further object of theinvention is to provide for automaticall feedin or rotating the platenat the comp etion o the return movement of the carriage, wherefore itwill be understood that the-carriage and platen need no attentionwhatsoever, as theyare automatically controlled in order that the handsof the operator may be entirely free for keys only. With these and otherobjects in view the present invention consists in the combination andarrangement of parts, as will be hereinafter more fully described, shownin the accompanyin drawings, and particularly pointed out 1n theappended claims, it being understood that changes in the'form,proportion, size, and minor details ma be made within the scope of theclaims wit out departing from the spirit or sacrificing any of theadvantages of the invention.

In the ac'com a plan view of a ltenungton' tggpe-writing ma.- nhmeequpped} with t e controlling mechan piston an its rod cap or sleeve 10,anymg drawings, Figure 1 is ism of the present invention, the top of thepressure-chamber being the controllingvalve o the pneumatic apparatus.Fig. 2 is a detail sectional view on the line 2 2 of Fig. 1. Fig.3 is afragmentary perspective view looking at one end of the type-Writingmachine with the carria e at its rear limit. Fig. 4 is an enlarged etailsectional viewon the line 4 4 of Fig. 1. Fi s'. 5 and 6 are detailelevations of the device or limiting the movement of the valve-actuatingmeans. Fig. 7 is a fragmentary perspective View illustrating the meansfor automatically feeding the platen. Fig. 8 is a detail per. spectiveview illustrating the. means for automatically dise gaging theescapement rackbar from the escapement-wheel. Fig. 9 is a. detailsectional view on the line 9 9 0. Fig. 1.

Like characters of reference designate corremoved to discloseresponding'parts in each and every figure of the drawings.

As hereinbefore indicated, the present invention is applicable tovarious forms of type-writing machines, the present disclosure being 1nconnection with a Remington machine, a portion of the frame of which hasbeen indicated at 1 in drawings, while 2 designates the ordinary form orcarriage mounted to travel back and forth across the top of the frameand having the platenroller 3, all oil which parts, together with othersshown, but not described, are common and well known ,and form no part ofthe present improvements. 7

In carrying out the present invention a c linder 4 is supported in rearand parallel wlth the top of the frame. of the machine by means of oneor more brackets, one of which-has been shown at 5. Within this 0 linderthere is a piston 6, having a piston-r0 7, pr jected at what will betermed the rear on of the cylinder, which is adjacent the right-hand endof the machine. The outer or rear end of the piston-rod is provided witha bracket-arm 8, which is rigidly connected to, the rear end of thecarrier e, as indicated at 9, whereby the with the carriage. lar andcarries upon its rear projected end a which is open at its forward theaccompanying are carried by and moved The piston rod 7 is tubuend, so asto receive and telescope'upon the rear end of the cylinder 4.-' The b Mracket 8 is" p q d d h u d rpinl iwhiehientemi the port.

' when the piston is moved forwardly with the the carriage; but seidvalve is closed means of a end of the passage 22.

controlling-shaft 2, which pierces the presinner end of the shaft therear open end of the piston-rod, and a hell-- cal spring 12 embracesthis pin and bears in opposite directions against the bracket-arm 8 andthe back of the sleeve 18. [9. limiting arm or rod 13 rises from theouter end of the bracket 8 and extends forwardly, so asto overlap thesleeve 10, with its forward .end passing loosely through a guide loop.14 an having its forward end promoted laterally to form a stop-shoulder15, against which the uide 14 is designed to engage and limit the orwardmovement of the sleeve under the pressure of the spring .12. The purposeof the spring 12 is to take up the jar upon the piston when the'carriagestops at the limit of its-rearward movement.

- At the front of the cylinder a pressurechambcr 16, supported upon asuitable admin cent portion of the frame of the machine i bracket 17 andin communication with a reservoir or supply-tent 18 by means of asuitable pipe connection 19. v The interior of the pressure-chamber isdivided into two compartments, (indicated at 20 end 21,) the compartment20 containing a suitable regulating-valveto maintain a constant pressure within the chamber 21 less than that contained within the reservoiror supplytank. The compartment 21 of the pressurechamber 16 is incommunication with the front end bf the cylinder 4 by means of a pipe orpassage 22 and has a valve-seat or port 28 within thenornpartment and atthe forward l Vithin the compart ment 21 is a substantially horizontallever 24, .fulcrumed intermediate of its ends, at 25, upon a bracket 26,projected from one of the walls of the compartment, with its outer endprovided with a substantially sernispher ical valve 27, normallyclosing; the port or valve-seat 23, there being a suitable spring 28 toyieldably maintain the valve closed. In. the passage 22 there is a ventort or opening 29, which is controlled by a iihpwalve 30, having a guideprojection 31 working through This valve is arranged to open carriage,so as to permit of the escape of arr from he cylinder, and thereby notinterfere with tile srward movement of the piston and under the actionof the'air entering from the pressure-chamber 16 into the cylinder inorder that all of the force of the compressed air may be directedagainst the piston.

For controllinthe pivotal valve-stem 2 there is provide a substantiallyhorizontal l sure-com'iertmefot 21 above and in substanl tial paralelism with the valve-stem 24, the being journaled in the bracket 26with its intermediate portion passing through a suitable stuffing-box 33in the viioll Of the chamber. A tapoet crank arm' 34. is carried by theshaft 32 within the pressure 42 and 43, designed for ,42 and 43 with thebracket.

the bar 39 in position for one or chamber and, in from-of the free endof the" valvcdstern 2f and-capable of engagement therewith to swing thevalve 22 away from its seat, and thereby establish communication fromthe pressure chamber to the cylinder. At the outer end of the shaft 32thereis a pendent crank-arm 35, and between the arm 35 and the pressurechamber is another crank arm 36, depending from thefshaft, with a spring37 connected to the lower end of the arm and to a fixed. portion of theframe of the ably hold the crank trip-arm 35 ofthe shaft at one limitwith the tappet arm 34 close to H or in engagement with t 1e swingingvalve stem 24.

' machine, asindicated at 38, thereby to yield- 8c The spring-actuatedmovement'of' the shaft 32 is limited by means of a plungen rod 39,pivotally connected at the lower end of the crank arm. 36 wardlytherefrom and working across the adjacent top portion of the frame ofthe machine, as clearly indicated iri Figs. 3, 5, and 6 of the drawings.A bracket 40 is rigidly secured upon the top of the frame and is projected in advance thereof, with its end provided with an upstandingslotted pro.- jection or 0st 41, through. is .designe to work. The underside of this.

projected.

and extending forwhich the red rod is provided with a pair ofstop-shoulders alternate engagement limit the spring-actu shaft 32.

with the bracket 40 to ated movement ofthe A bowed. U

spring 44 is carried by the top of the rod and" works through the slotof the post 41, so as to bear against the 11 per end wall of the slot,thereby to yielda ly hold the bar down against the bracket, so as toinsure the e n "a ement of one or the other of the shoulders} D To mantain the other the shoulders "42 and 43 to enga e the; bracket ,thereis a slotted or link-shaped. eeper 1 45 disposed transversely across therear on of the bracket 40 and pivoted, as at 46, thereon to swingvertically in the direction of movement of the bar and provided at oneend with a lever 47 directed upwardly above the; carriage of themachine, whereby the keeper, 45 may be swung from one limit to theopposite limit. In the position of the keeper as shown in Fig.

5, with the bar 39 working."-

across the top thereof, thebar is freeto move vertically against theresistance of the spring 44, thereby to permit of the shoulder-12 pass Ting the frontof the bracket 40 until the'b'ar is stopped by the shoulder43 engaging the bracket, whereby the bar 39 has its greatesfit'springactuating -movement. By manual manipulation of the crank arm 35 ofthe shaft 32 the bar 39 may be drawn forwardly until its free end passesthe keeper 45, whereupon the handle 47 may be swung forwardly, so toelevate the slotted keeper for the, reception of the free end of thebar, wlmrebyv send free end will beheld down and the other shoulder 42will eng ge the bracket,and therebylimit the spring-actuating movementof the bar 39 and t e shaft To provide for automatically 0 ening thevalve 27 by the carriage of the mac me, there is provided a trip device,as best shown in Fig. 3 of the drawin s, comprising a. bracket 48,rigidly connects to the left-hand endof the carriage,-at the backthereof, and carrying an upright rocking pin or shaft 49, having acrank-arm 50 upon its upper end and a erank-arm 51 uponits lowerend,,the arm 50 being extended rearwardly and in position to engage thecrank-arm of the shaft 32 and pass heath the latter, as shown in Fig. 1of t e drawings, so as to rock the shaft against, the influence of thespring 37, and thereby swing the tappet arm 34 away from the swingingvalve-stem 24 until the trip-arm 50 escapes from the free end ofthe'crank-arm 35,

whereupon the spriri 37 will operate tor turn the shaft 32 t0 its normalposition, which ,plnn er. ere :arm 35, it is held against displacementwill result in the ta pet-arm 34 striking the swinging valve-stem24 to 0en the valve 27, and thereby admit air uniizir pressure into thecylinder 4 against the-plunger 6 to automatically return the- :carnageto its right hand limit b reason of the-movement of the en the trip-arm50 en ages the hy'means of a stop projection 52, pendent our the bracket48 and-engagingthe lower crank-arm 51. After the arm 50 disengages thearm 35 and reengages the same upon its opposite" side during the returnmovement of the carriage the arm 50 will wipe ast the crank 35 and whendisengaged there om will be returned to its normal position under theinfluence of the spring 53, which is coiled about the pivoted portion 49of the trip.

It will here be explained that, the bar 39 is originally set to have itsfront shoulder 42 contact with the stop 40, and after the apparatus hasbeen in use for some time and the set to have its shoulder 43 engage thestop 40, so as'to obtain a greater movement of the rod 39 and acomparatively greater movemeht for the tappet -arm 34, whereby said armstrikes the pivotal valve-stem 24 with greater momentum, which opens theport between the case 16 and the cylinder 4 to a greater extent and fora greater length of time in order that the pressure upon the piston 6may increased, so as to make up for the redub- 1 a oi pressure in thesupp] 'tank 18. it is proposed to throw t e escapement of --thecarriageout of operation during the return movement of the carriage under theinfluence 5 of the pneumatic carriage-operating mechanism, and thisfeature is carried out as llustrated in Figs. 8 and 9 of the drawings,wherein the reference character 54 designates the vertipally-sln'ftablecscapement rackbar normally in engagement with the upper peripheralportionof the idle escapement ratchet-wheel 55. Ordinarily theescapement-bar 54 is manually shifted out oi engagement with the escapeinentwvheel, and in providing for the autome-tic disengagement ofthe bar a trip device is mounted upon the bar, consisting of an uprightspring-pressed post or pin 56, mounter. in a suitable bearing 57 uponthe front side of the rack-bar with its upper end terminatin in acranherm 58, projected forwardly, anc its lower end terminating in aharwardly-projected crank-arm 59, provided with :1 antifiiction-roller60. In front of and below the rack-bar 54 there is provided a shift railor track 6l,terminall supported at itsleit-han'd end upon a suitablebase-plate or bracket 62,]

suitable manner.- Inverted substantially L- shaped posts 65 rise fromthe bracket 62 in front of the track 63 and support a trip-bar 67,disposed in front and also above the rack 54- and. in. the path. of thetrip-arm 58 in the forward movement of the carriage. V /hen the carriageis at its rear or right-hand limit, the foot 59 of the trip devicetravels beneath the track 61 until the trip-arm 58 engages with thetrip-bar 6'7, whereupon the arm 58 will swing rearwardly, and therebythrow the foot from beneath the track until the trip device disengagesthe bar 67, when the spring-actuated trip device will return to itsnormal position under the influence of its spring and the foot 59 willengage the upper side of the inclined portion es of the track, therebyto elevate the rack-bar 54 out of engagement with the escapement-wheel55 during the re- 1 turn movement of the carriage. At the rear limit ofthe carriage the foot 59 runs ofi of the unobstructed rear end of thetrack 61, thereby permitting the rack-bar 54 to gravitate into I Thistripping of the escapeinent device is of Ieourseautomatic and requiresno'manual manipulation whatsoever. In addition to tripping theescape-ment of the carriage it is also designed to automatic ally feedor rotate the platen 3, the mechanv ism for carrying out this featurebeing shown I in Figs. 1 and '7, wherein has been shown the usualhand-lever 68, provided with the dog or pawl 69, cooperating withtheratchet 70 at theri-ght-hand end of the platen 3. Lpon i the upperand inner portion of the lever 68 there is provided a bracket 7 i,projected at the right of the lever, with an arm 72 carried by thebracket and extended rearwardly i aizross the adjacentend of thecarriage into erank-armfi i upon a substantially l1orizontal sh'ait 7-mounted in a bearing-bracket 75, secured to the rear portion of theright- I hand end. of the frame of the machine. A

engagement wi h the escapement -'wheel.

RIO

the path of the downward movement of a ben, and a trip thereby trip thevalve.

' vice tojtrip the ,of-the trip mechanism.

7 the crenl she-ft disposed in forward movement ol the triploractiuition thereby to trip the v pendent crsink-erm 7G is providedupon the rear end of the shaft 74 in position to engage 2Lspring-pressedvertically-swinging tri'p lin k 77, mounted upon the topoi the frame of the machine. During the letter port of the returnmovement of the carriage the crank- SLI'III 76 engages the link 77 endthrows the latter upwardly and reerwu-rdly against the post 78, when thehull becomes fixed and the arm 76 is swung lmchwcn'llv,therchy swing ingthe crank-arm 73 downwardly against the arm 72, which tilts the lever G8upon its fulcrum 79 and moves the dog 69 forwardly, so as to rotate thepluten one or more notches, according to the rel tion of the sx-verul'inrts I N hen the carriage moves forwardl y, the trip mecnnnisni grnvhtotes to its normal position, whereby the parts are again in positimifor octuution by contact of the arm 7e with the trip-link. 77 upon thereturn movement oi the carriage.

Having fully described the invention, what is claimed is '1. ln utype-writing nntchinc, the combination with the frame and the carriagethereof, of automatic cm'rioge-return i'neclun'iism comprising n,cylinder, a piston, a pistoi'i-rod, a connection between the piston-rodand the carriage, a pressure-clunnber, u valved coinmunication betweenthe chamber and the cylinder, vwlve-controlling means including acrank-shaft proj ectcd on t cruelly-oi th e chenimounted. upon thecarriage to on age the crunl: oi the crank-shalt at the forward limitol' the carriage i'ni'ivement an 2. Inn typc-writing mac e, thecombination with the carriage thercoi, oi pneu- Inetic currisgz-returnmechanism including o normally closed v alve huvin a pivotal stem, atspring cctuuted crank-short having :iinppet-arm for engagement with thesalve-stem to swing the latter upon its pivot, and a trip mounted uponthe carriage with the (trunk ol" the path of the slve Lt the 'lorwurdlimit of the carriage.

3. The combination with the frame of a tv e-Writing machine and thecarriage theref,'of automatic carriage-41 1'urn mcclmnism including avalve, :1, movable vnlvwconlmlling device, a spring; extending betweenthe controlling device and the mine oi" the innchine, moons to limit theinovmnent oi the controlling device under the influence of the spring,uncle trip mounted upon the curriuge for engagement with the'alve-controlling dene against the influence of the spring.

y 4. The 001 e-writing machine and bination with the 'lrameo'f a thecarriage there in movnbie control-- ling device, it spring to yieldsblymaintain l the controlling device at one limit, movable l meansconnected to the contiolling device tol limit the movement, of the sameunderthe in. lluenoe of the spring, and a trip mounted upon the carriagetotri'p the valve-controlling device against the influence of thespring.

5. In at type-writing machine, the a'zomhi nstion with the eerriagcthereof, of neurnutic curriuge-return mechanism inclu ing it normsllyclosed valve, at controlling crank shalt therefor, a spring connected tothe crcnlnshal't, s, movshle lii'niting device con nected to the shalt,it stop curried by the frame of the nicchine with the limiting de vicenormally engaging thestop, 51nd a trip i'noimt'cd upon the carriageinnosition to en gage the erzmh oil the'shuft and trip the-some againstthe uctionol the spring at the ion nrd limit of the carriage is open thevalve.

l l l l. l l

(3. The eon'ibinution wit-.1 th li ct 'tv iewi'iting machine and the c*1 e tl'l i mesh t, a s mg extefo guged with said stop, and a tripmounted upon the carriage andloc'sted to engage the crank of the theforward valve. v

7. The combination with. the Ere-me of e tvpe-writingmachine and thecarriage thereol", ol' meui'nutio cncrriuge-retixrn mechanism includinga valve having a coi'itrollingcrsnkshu l t, an arm uponthe shalt, springcon nected to the arm and to the frame of the machine, it slotted stopupon the frame, c limiting-bur pivoted to the arm and working throughthe slot of the stop, the our being provided with a, succession oishoulders for 1 individual engagement with the stop to limit the loiwurdinoveinent of the bar, a sn'ing to vieldubly maintain the banut onelimit of the limit of the carriage to open the slot, menus to udjustoblyguide the her for contact of any oi its shoulders with the stop,

and a trip mounted upon the cursiege for engagement with the crank ofthe shalt to trip lhesnme and open the valve at the 1301- I word limitolthe carriage. x f

i S. The combination with the imme ot a type-writing;machineundthecurriege therel of, of i 1 including a valve having-ucontrollingcmnkshalt, an arm carried by the shaft, a spring connected tothe ,a-i'm and the frame of the machine, u slotted stop upon the theme,a,

\ limiting-bar pivotully connected to the arm l and workinsgin the slot,one edge of the be? being provided with stepped shoulders for individunlengagement with the stop to a? justcbly lent the I spring-actuated movefd the name of the i crunk-shelt and trip thcluttei? st ,meumeticcerriage-i'eti'u'n mechanism and provided with upper and lowersubstantia y horizontal cranl .-arms, one of the arms being located toengage the controllingcrank, a stop for engagement by the other toprevent yielding of the first-mentioned arm when engaged with thecontrolling-crank, said trip ble of wiping est the cranl movement oi thecarriage, and

combination with the frame of a type-Writing machine and thecarriagetherepneumatic carriage-return mechanism in avalve, a sprung-actuatedvalve- 13. l

(7 connected to the controlling evice and ro- I mechanism including acylinder, a piston a vided with a succession of stop-shoulders, apiston-rod projected at one end of the cylinstop carried by t e ame incooperative reder, a rac et carried byth device caper" during the returntype writing machine, 01 carriage return rision the slidahle movement 0the plun er-rod mg a rocking link mounted upon the heme upon the bracketat the 'rear limit 0 t e car- 85 to alternately receive and lie beneaththe bar, riagc.

14. The combination with the carriage of a type writing machine, ofcarriage return mechanism including a cylinder, a iston, a piston-rodprojected at one end of t e cyhnder, a bracket carried by th slidab ahandle forcontrolling the link, and a trip mounted upon th with tiresame against the influence of t e forward limit of the carriag 10. c ecombination with the frame of a type-writing machine and the jected endof the piston-rod ally embracing the cylindenand a spri butlerinterposed between the sleeve and the racket. Y L

15. The combination with the carriage of a itln -bar plvoted to the armand worlnn type writing machine, of carriage return the ower portion ofthe slot with its unde mechanism including a cylinder, :1 iston, a sideIOVl ed with steppedshoulders for in piston-rod projected at one end .oft e cylindivi ual en" agement with the sto a s rm er with its projectedend provided with a, carried by tile bar and working t oug ,thelongitudinal socket, a bracket carried by the 7 carriage and provided piin the socket of the piston-r0 a sleeve carried by thepiston-rod-and'tele opically embracing the cylinder, and a hehcal sprinemracing the pin and bearing against the s eeve and the bracket tocushion the plunger. I he combination with the carriage of atype-writing machine, of carriage-return slot in engagement with theupper end there of, a vertically-tiltable link t e ame to alternatelyreceive and he 11 telescoping ment thereof, and a tri u on the carria eto engage the crank of tli e sliaft and same against the influence ofthespring at e orward limit of the cairia e.

1 1. The combination with the carriage of a d rojected at one end of t ecyhntype writing machi et carried b the carriage, the piston-rod havinga slide le connection with the bracket, a spri 'enga 'ng the bracket andthe piston-rod to yielda ly force the latter away from the bracket, andmeans extending between the bracket and the p1st0nrod to limit thespring-pressed movement piston-r der, a brac crank-arm during theforward movement of t e'carriage, said trip device capable of WI tereof. I

ing past the crank-arm uring the return 1 7. Thecombinat on-wlth thecarriage ofa movement of the carriage and means to re- 1 type-writingmachine, of carriage-return mechanism including a cylinder,'a iston, a

piston-rod projected at der, :1 brac 8i carried ge return piston-rodhaving a slidable connection with crank, the bracket, a sleeve carried ythe pistondevice comprising an upstanding rod andtelescopicallyembracing the cylinrotatable shaft mounted upon thecarriage I der,

after I'EiPfiSSiIlg the crank.

hecornbination with the carriage of a one end of t e cylinby-thecarriage, the

mechanism including a'cylinder, a iston a a spring bearing 1n oppositedirections 3 erm eerrie d- 1 her consisting gem-m d "and the bracket, any the bracket end overiep ping the sieeve, e guide eefi'ied by thesieeve and telescopically receiviog'the arm, and a shoui def/u on theen'njiii front of the uide to t e spring-pressed movementoi' the pi- Wl- 0 gainst the 18. in e type-writihg'machine, the combi- {netion with ashiftobi "means for automatically shiftin the resig- & ting device eescepement rack,

of a track,

"eorried by the reek-bin? mind having a portion vice to move the same'rmge, and. means traveling against one side of the track in the forwardmovement of I the carriage and. against the opposite side of the trackin the reverse movement 01 the eel-liege to maintain the reek-bar m aninoperative position, a, trip located in the pethof the shifting dooutof engagement with the treok at the forward. limit of the earto directthe shifting device to the opposite side of the track upon'thereiriorement of the carriage to'shiit the reek her.

i'g "e-e io itmg Machine, the combi- 'iiationrrith e shiftabieescepement rook-bar,

' riege, the inciined end of the track operating to eievete theroeieshuft and the rack-her during the return movement of the carriage.in testimony that we claim the foregoing as our own We have heretoaflixeii our signetures in the presence of two witnesses. WILLIAM A.ROBERTS.

BEN JAMZ'N HYATT. Witnesses:

J. L; QIIELLION, (3. B. it" imormiost beneath and against

